経済学短歌 Economics Tanka
平均の 費用逓減 産業は 規模の経済 自然独占
Average cost decreasing industry could lead to natural monopoly due to economy of scale.
ネットワークの 経済が効く 産業は 価格フリーの サービスもあり
Free services can be provided by companies where network economy is working.
Kota Nakako
2020/10/06
